* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
}

html {
    font-size: calc(100vw / 75);
}

#app {
    width: 75rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
p,
blockquote,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
legend,
button,
input,
textarea,
th,
td,
img {
    border: medium none;
    margin: 0;
    padding: 0;
    font-family: "微软雅黑";
    border: none;
}

img {
    /* border 0 照顾低版本浏览器 如果 图片外面包含了链接会有边框的问题 */
    border: 0;
    /* 取消图片底侧有空白缝隙的问题 */
    vertical-align: top;
}


/* em 和 i 斜体的文字不倾斜 */

i,
em {
    font-style: normal;
}

ul,
ol {
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

a {
    text-decoration: none;
    color: black;
}

a,
ins {
    text-decoration: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
}

*:focus {
    outline: none;
}

.left {
    float: left;
}

.right {
    float: right;
}

.clearfix::after {
    display: block;
    content: " ";
    height: 0;
    visibility: hidden;
    clear: both;
}

.clearfix {
    zoom: 1;
}

a,
a:hover,
a:active,
a:focus,
a:visited {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
}